EP 1533859 A3 20070627 - Diffusion layer for a fuel cell
Title (en)
Diffusion layer for a fuel cell
Title (de)
Diffusionsschicht für eine Brennstoffzelle
Title (fr)
Couche de diffusion pour une pile à combustible
Publication
Application
Priority
JP 2003377279 A 20031106
Abstract (en)
[origin: EP1533859A2] A fuel cell includes an electrolyte membrane, a pair of anode-side and cathode-side catalyst layers, a pair of an anode gas diffusion layer and a cathode gas diffusion layer, and a pair of an anode-side separator and a cathode-side separator. Also adjusted in the fuel cell is at least one of a fine pore diameter and a content of a water repellent agent in the anode gas diffusion layer and the cathode gas diffusion layer, so as to satisfy the following equation (1): -0.07 ≤ (Ya-Xa) / ((Ya-Xa) + (Yc-Xc)) ≤ 0.15 wherein Xa represents a water feeding amount in the fuel gas thus fed, Ya represents a water discharging amount in the discharged fuel gas, Xc represents a water feeding amount in the oxidizing gas thus fed, and Yc represents a water discharging amount in the discharged oxidizing gas. <IMAGE>
IPC 8 full level
H01M 8/04 (2006.01); H01M 8/02 (2006.01); H01M 8/10 (2006.01)
CPC (source: EP US)
H01M 8/023 (2013.01 - EP US); H01M 8/026 (2013.01 - EP US); H01M 8/04291 (2013.01 - EP US); H01M 8/1007 (2016.02 - EP US); H01M 8/0234 (2013.01 - EP US); H01M 8/0239 (2013.01 - EP US); H01M 8/0245 (2013.01 - EP US); H01M 8/04126 (2013.01 - EP US); H01M 8/04179 (2013.01 - EP US); H01M 2008/1095 (2013.01 - EP US); Y02E 60/50 (2013.01 - EP)
Citation (search report)
- [X] EP 1349228 A2 20031001 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- [XY] EP 0917226 A2 19990519 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- [XY] US 6451470 B1 20020917 - KOSCHANY ARTHUR [DE], et al
- [XY] US 2003157397 A1 20030821 - BARTON KELLY [US], et al
- [XY] EP 0560295 A1 19930915 - HITACHI LTD [JP]
- [XY] EP 1349224 A1 20031001 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- [Y] EP 0415733 A2 19910306 - CANADA MINISTER DEFENCE [CA]
- [XY] JANSSEN G J M ET AL: "Water transport in the proton-exchange-membrane fuel cell: measurements of the effective drag coefficient", JOURNAL OF POWER SOURCES, ELSEVIER, AMSTERDAM, NL, vol. 101, no. 1, 1 October 2001 (2001-10-01), pages 117 - 125, XP004303437, ISSN: 0378-7753
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL HR LT LV MK YU
DOCDB simple family (publication)
EP 1533859 A2 20050525; EP 1533859 A3 20070627; CN 1614802 A 20050511; US 2005100780 A1 20050512
DOCDB simple family (application)
EP 04025958 A 20041102; CN 200410090112 A 20041103; US 98153004 A 20041105